Method and system for maintaining partial vacuum in display...

Details Method and system for maintaining partial vacuum in display... Method and system for maintaining partial vacuum in display...

2005-07-15

2009-06-23

Patel, Vip (Department: 2889)

Electric lamp and discharge devices

With luminescent solid or liquid material

Vacuum-type tube

C313S496000, C313S497000

Reexamination Certificate

active

07550912

ABSTRACT:
The time required for an interferometric modulator to switch from a state with a collapsed cavity to a state with an open cavity or vice versa, i.e., the switch time, is decreased by decreasing the viscosity of the gas filling the cavity. The viscosity is decreased by forming at least a partial vacuum in the cavity. The partial vacuum is formed, in turn, by forming a cavity in a housing holding the interferometric modulator. The vacuum can be generated by a vacuum pump. By decreasing the switch time, interferometric modulators in an array of interferometric modulators can be switched more quickly, thereby advantageously increasing the refresh rate for a display using the array.

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